Three Broomfield schools were briefly placed on lockout this morning, according to Boulder Valley School District.

Kohl Elementary, Broomfield Heights Middle School and Broomfield High School were placed on lockout at 11:45 a.m., but were taken off lockout by 12:15, according to district spokeswoman Maela Moore.

Police placed the schools on lockout after a 17-year-old Broomfield High School student reported he was threatened with a knife near Miramonte Boulevard and Miramonte Court. The student described the suspect as a white male with a "Hispanic accent" wearing a black hoodie, black pants and black shoes, according to Broomfield police Sgt. David Walts.

The department's K9 unit went out to track a possible suspect, but did not turn up evidence of anyone matching that description, Walts said.

The student said he was out for a walk during school hours and was running late for an appointment.

Police do not believe students are in danger and lifted the lockout after half an hour, Walts said. A lockout is when the doors to the school are locked and no one is admitted or allowed to leave, but classes and activities continue as usual.

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